7a-9=4a-4+4a

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Solution for 7a-9=4a-4+4a equation:


Simplifying
7a + -9 = 4a + -4 + 4a

Reorder the terms:
-9 + 7a = 4a + -4 + 4a

Reorder the terms:
-9 + 7a = -4 + 4a + 4a

Combine like terms: 4a + 4a = 8a
-9 + 7a = -4 + 8a

Solving
-9 + 7a = -4 + 8a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-8a' to each side of the equation.
-9 + 7a + -8a = -4 + 8a + -8a

Combine like terms: 7a + -8a = -1a
-9 + -1a = -4 + 8a + -8a

Combine like terms: 8a + -8a = 0
-9 + -1a = -4 + 0
-9 + -1a = -4

Add '9' to each side of the equation.
-9 + 9 + -1a = -4 + 9

Combine like terms: -9 + 9 = 0
0 + -1a = -4 + 9
-1a = -4 + 9

Combine like terms: -4 + 9 = 5
-1a = 5

Divide each side by '-1'.
a = -5

Simplifying
a = -5

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